Accounting machine



oct. 31,1944. Q J, UNDSTRAND 2,361,714

ACCOUNTING MACHINE lFiled June 22, 1959 '7 Sheets-Sheet 1 ATTORNEY l Oct 31, 1944 o. J. sUNDsTRAND 2,361,714

ACCOUNTING MACHINE Filed June 22, 1959 7 Sheets-Sheet 2 INVENTOR OSCAR J JUNDSTRAND TTORN EY ACCOUNTING MACHINE lFiled June 2z, 1959 7 sheets-sheet 5 lETA.

ATTORNEY Oct. 31, 1944. o. J. sUNDsTRAND ACCOUNTING MACHINE Filed June 22, 1939 7 Sheets-Sheet 4 FJH: 1

INVENTOR OSCAR J /NDSTEND Oct. 31, 1944. o. J. sUNDsTRAND ACCOUNTING MACHINE Filed June 22, 1959 7 Sheets-Sheet 5 uw Mm A@ s. n ,S 1..- mm x ...t /mw W. 1 ...E @s

INVENTOR OSC/1 R J. .5U/VDS TRND ATTCRNEY Oct. 31, 1944. o. J. sUNDsTRAND ACCOUNTING MACHINE Filed June 2z, 1939 7 Sheets-Sheet 6 ATTORNEY INVENTOR OSCAR J. SUNDSTRAND Oct- 3l, 1944 o. J. sUNDsTRAND 2,361,714

ACCOUNTING MACHINE Filed June 22, 1939 7 Sheets-Sheet 7 INVENTOR 05 CAR d. SUNDSTRAND BY /fwv ATTORNEY I Patented Oct. 31, 1944 ACCOUNTING MACHINE Oscar J. Sundstrand, West Hartford, Conn., as-

signor to Underwood Elliott Fisher Company, New York, N. Y., ka corporation of Delaware Application June 22, 1939, Serial No. 280,568

6 Claims. (Cl. 235-60) This invention relates to accounting machines of the key set, motor operated type, and more particularly to the registers thereof.

Frequently machines of this` class employ one or more crossfooters and a plurality of registers,

the crossfooters being capable of adding and subtracting, and the registers being capable of addlng only.

It is an object of the present invention to pro- Vide a means for effecting addition and subtraction in the registers, together ywith controls therefor, to increase the Yilexibility of the machine in handling complexy types of accounting problems.

Another object is to provide such a means in x so simple and compact a form as to require but few additional parts, and but slight additional space in the machineover that occupied by the present register unit.

A further object lies in the provision of a single set of transfer elements common to all the registers and effective for both addition and subtraction to carry from one denominational order wheel to. the next higher denominational order wheel.

With these and incidental objects in view, the invention consists in certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims, and a preferred embodiment of which adding and'subtracting registers including the` transfer mechanism,

Figure lis a right side elevation showing one of the registers about to be selected `for an adding operation,

Figure 6 is a View similarto Figure 5 but showing the register selected,

Figure '7 'is a View' similar to Figure 6 but showing the register engaged for the adding operation,

Figure 8 is a view similar to Figure 5 but showing a different register about to be selected for a subtracting operation,

Figure 9 is la view similar to Figure 8 but showing the register selected,

Figure 10 is a View similar to Figure 9 but showing the register engaged for the subtracting operation,

Figure 11 is a right side elevation similar to Figure 8 but showing the parts in the position they occupy at the end of a blank cycle during which a register has been selected and engaged preparatory to taking a total,

Figure l2 is a View similar to Figure 11 but showing the parts in the positions they occupy shortly after the beginning of the total cycle,

Figure 13 is a View similar to Figure 12 but showing the parts in the positions they occupy shortly after the middle of the total cycle,

Figure 14 is a view similar to Figure 13 but showing the parts in the positions they occupy shortly after the middle of the sub-total cycle,

Figure 15 is a fragmental perspective oi certain parts of the register adding and subtracting selective control mechanism, and

Figure 16 is a fragmental perspective of certain parts of the register selecting mechanism.

GENERAL DESCRIPTION This machine is an improvement on my pend- 'ing application Serial No. 581,800 now Patent No.

2,194,270. The machine includes the customary keyboard with amount keys, date keys and operation controlling keys. It has the customary traveling paper carriage that is automatically tabulated from-column to column. The carriage includes a control plate carrying a series of magazines having lugs for automatically controlling the various operations of the machine that may be' initiated manually by the keyboard. The machine includes fouradding and subtracting registers in addition to the usual crossfooter, this latter being omitted in the drawings since it has no particular bearing on the present invention.

-AllI-of the registers and the crossfooter are actuated by a common set of actuators adjustable under control of stops set by the amount keys. rIhese actuators also control the adjustment of type for printingamounts and totals.

The registers are mounted one above the other, and are operated by racks connected to the actuators and having two sets of teeth. A single set of transfer elements, common to all of the registers, is arranged to effect a transfer from one denominational order to the next higher denominational order, whether the necessity for such transfer' arises from an adding or a sub' tracting operation. Selection of the registers may be performed manually by depressing one of four register keys, or automatically by the depression f control levers by the carriage control lugs.

Totals are taken from the registers by operating the machine through a blank cycle, during which the selected register is engaged with the adding side of the racks, and then by depressing the Register Total Key (or by operating the corresponding carriage control) and again cycling the machine.

Sub-totals are taken from the registers in the same manner except that the Register Sub-Total Key is operated instead of the Register Total Key.

Subtraction in a register is accomplished in substantially the same manner as addition, except that the Register Subtract Key (or its corresponding automatic carriage control) is actuated before the machine is cycled, to engage the selected register' with the subtracting instead of the adding side of the racks.

DETAILED DESCRIPTION INDEX or' TOPICS l. The machine sections and actuating mechanism.

2. Adding and subtracting registers-in general.

3. Transfer mechanism.

4. Selection of the registers.

5. Engagement of the registers for an adding operation.

6. Engagement of the registers for a subtracting operation.

7. Actuation of the registers.

8. Taking totals from the registers.

9. Taking sub-totals from the registers.

1. The machine sections and actuating mechanism Referring to Figure l, the machine includes the customary keyboard having amount keys I and a motor bar 2, a paper carriage 3, laterally movable along a track 4 and carrying a roller platen 5, around which paper is inserted for `printing by type bars 6, and a, plate I fixed on the carriage, having a plurality of control magazines 8 for automatically controlling various machine operations as the carriage tabulates from column to column.

The machine also has four registers designated A, B, C and D in Figure 3. Each register is comprised of a plurality o f ten tooth Wheels, and each is operable for addition and subtraction.

Situated in front of the registers is a crossfooter (not shown) having a plurality of twenty tooth Wheelsy and likewise capable of both addition and subtraction. This crossfooter and its operating mechanism is identical with that disclosed in the before-mentioned application Serial No. 581,800.

The machine is operated by an actuating shaft 9 that is connected to an electric motor drive in such a manner that the shaft is rocked, first, counter-clockwise, and then, clockwise, during each cycle of the machine. 'I'he motor (not shown) is started by closing suitable switch mechanism under control of Motor Bar 2, or a corresponding carriage control lever. Simultaneously, the motor drive is coupled with the shaft 9 by suitable clutch mechanism to initiate the above described oscillatory movement of the shaft.

Two similar arms I0, only one of which is shown, are secured to drive shaft 9, and are each provided with rollers such as II that rest in cam slots in the forward ends of two similar arms such as I2, pivoted on a rod I3 and situated on opposite sides of type bars 6. A series of actuating levers such as I4, there being a lever for each type bar, are pivoted on rod I3 between arms I2, and are tensioned clockwise about the rod by springs such as I5 so that the upper edges of the levers rest against a tie-rod I6 secured between arms I2. The forward ends of levers I4 are each pivoted at I1 to their corresponding type bars 6, which are guided for vertical movement in the machine frame. The rear end of each lever I4 is connected by pinand-slot connection I8 to a bell crank I9, also pivoted on rod I3 adjacent each actuating lever. The rear ends of bell cranks I9 are pivoted at 20 to corresponding register actuating racks 2l, guided for vertical movement in the machine frame. Springs such as 22, connected between each bell crank and lever, normally tension the bell cranks counter-clockwise about rod I3 so that the pins of pin-and-slot connections I8 are urged toward the upper edges of the slots for transfer purposes to be later described.

Operation of the machine causes arms I0 and I2 to be raised and lowered during each cycle. As rod I6 rises during the rst half of the cycle, actuators I4 raise such of the type bars 6 as are free to rise under tension of springs I5, and the corresponding actuating racks 2| are simulta- .neously lowered. As rod I6 descends, during the second half of the cycle, the actuators are restored, restoring the type bars and racks to the normal position shown in Figure 3.

The extent of vertical movement of the type bars and racks is controlled by stops (not shown) that are moved by amount keys I' (Figure l) into the path of vertically disposed rods 23, connected to the forward ends of arms 24 of type bars 6. Printing is effected by hammers 25 that are tripped to strike impression type carried by the type bars shortly after all the bars have risen to their fullest extents as determined by the amount indexed on the keyboard.

2. ADDING AND SUB'rRAcrING REcnsrERs-IN GENERAL The registers A, B, C and D (Figure 4) are each composed of a number of ten tooth wheels 26 rotatably mounted on shafts 2T. Shafts 21 are situated one above the other and extend between the adding side 28 and the subtracting side 29 of racks 2I, and are mounted at their opposite ends i brackets such as 30, slidably mounted for horizontal movement on cross bars 3| xed in the machine frame. Wheels 26 are normally held in neutral position, out of mesh with the racks, and are engageable with either side of the racks by shifting the registers bodily into mesh therewith. 'I'he wheels are held against improper rotation while in neutral position by detents such as 32 (best shown in connection with the B register). These detents are connected between arms such as 33 pivoted at 34 on brackets 30. Each right arm 33 carries a pin 35 that extends through an aperture in a stationary plate 36 into a slot 31 (see the D register) in a cam 38 pivoted at 39 on plate 36.

The lower ends of cams 38- are slotted to receive Ithe ends of shafts 21. Cam slots 31 are so shapedthat when the registersare in neutral position, detents 32 are cammed downwardly into engagement with the wheels to prevent improper rotation. When the register is shifted to engage either side of the racks, oscillation of cam 36 about pivot 39 incidentA tofsuch shifting, cams the detents upwardly out ofengagement with the wheels,'1eaving them freely rotatable by whichever side ofthe racks they have engaged.

3. TRANSFER MECHANrsM A single set ottransfer elements common to a-ll of the registers is arranged to eiect a carryof "1 froma Wheel of lower order tothe wheel'of next higherorder.

As before stated, bellcranks I9 (Figure-3) are normally tensioned countereclockwise aboutlrod I3 by springs 22, urging the pins ofthe pin-andslot connections I8 upwardly toward the upper edges of the slots. These slots are of'sufficient width to permit an additional one tooth step` of movement tothe corresponding rack 2l of each bell crank I9 under the tension of springs 22. All of the racks are restrained from this additional step of` movement by bell'cranksY 421'y (Figure 4) pivoted at 50.

The horizontal arms on eachof. these bell cranks have flanges 40 that engage lugs 4l on each rack of the next higher order, and the vertical arms of the bell cranks have flanges 42" that engage shoulders 43`iormed on extensionsrv 44 of slides 45, there being aslide 45 and another slide 46 for each denominational order. Springs 41 tension bell cranks 49 counter-clockwise about plvotv50 and anges 42 against shoulders 43, in which position flanges 40 restrain racks-2`| of the next higher order from rising the additional'y step of movement. The units rack is held permanently against this additional step of' movement by any suitable means such as the stationary element 362 disclosed in application Serial No. 581,800.

Weak springs 48, connected individually to each of the slides 45'- and 46, tension the slidesdownwardly against a cross bar 5l. in which position shoulders 43 'lie in the plane of flanges 42. Each I pair of slides 45 and 46 is connected forparallel".

uniform movement by a pin 52 xed in' oneslide and extending into an opening 53 in the other. Each slide 46 has inwardly projecting lugs such as 54 on one side thereof opposite each register,

and each slide 45 has similar inwardly projecting lugs such as 56 on the opposite side of the slideopposite each register. The lugs 54 are engageable by transfer lugs such as 55 on one face of each register wheel 26, and the lugs 56 are engageable by transfer lugs such as STdiametrlcally opposite to lugs 55 and on the opposite face of eachy register wheel 26.

Addition and subtraction in the registers'is ef-` behind flange 42, whereupon bellcrank 49 rocks counter-clockwise, allowing the next higher order rack 2| to rise the additional step of movenientv to rotate the next higher order wheel a distance of-one tooth toeiiect the transfer additively.

Similarly, subtraction of an amount sufficient to rotate a wheel 26 counter-clockwise from 0 to 9"causes its lug 55=`to engage its correspond ing lugf54l and raise slideL 46,` which, through its connection with slide 45, raises this slide also to eiectfa transfer'subtractively in the' same mannerv as above described in connectionv with an adding operation.

This transfer movement occurs toward the endfofay machine cycle, the transfer mechanism andracksbeing reset to their initial position at the beginningof the'nextcycle by a cross bar 58, arranged'to swing bellcranks 49 clockwise sufficiently to restore the racks and to cause flanges 42 to again engage shoulders 43'of the slides, the

latterl descending undertensiony of springs 48. Cross bar 58-4 corresponds to-the cross bar 310 in tlae'previously mentionediapplication Serial No.

4. Selectionof the Registers The registers may be selected manually or automatically. Manual selection of the registers is. accomplished by depressing one of four keys designated A register, B register, C register and D register. in FiguresZ and 3.

Referring particularly to Figure 3, four hails 6l are pivoted on rods 62, and lie directly beneath the stems .off the Register Selecting Keys. The lower portions ofthese bails are slotted to receive upstanding, projections of slides 63 to 66 extending to the` rear of the'` machine. At their rear` endsr the. slides 63 to 65. have upstanding projectionsv lying rdirectly behind downwardly eX- tending shoulders on bails 6l' to 10 (Figure 16) pivoted ona rod 1|. Attheir opposite sides, the

.bails 61 to 10. have pivoted. thereto four links 12 to 15, whichin turn are each pivoted to engaging links such as 16 (Figure 5), there being an engaging link :for each register.

As shown in Figure 5, there isa pin-and-slot connection between each of the links 12 to 15 and its ccrresponrlingfengaging link 16, to provide for. a movement of any of the links 12 to 15 without a corresponding movement,` of the engaging links.

By theftrain of ,connections just described, de-

ypression of one of the Register Selecting Keys A yupwardly. Therear ends. ofthe engaging links are'pivoted to arms-w83. secured toy shafts 84 (see also Figure 4) that are connectedby pin-andslot connections to.sliding brackets 30 of each register.

From this construction, it is seen that when one of the links 12 to 15 lis raised by depression of-its Register Selecting. Key, the corresponding engaging'y link 16 will be free to move up a short distance under thetensionof'its corresponding springL 82, when studs 11`to 80 are moved into valignment with notches 86 provided in engaging links 16.

Automatic selection of the registers is controlled by magazines such as 8 (Figure 3) secured on the carriage control plate 1. The rear end of each slide 63 to 66 rests in front of a depending arm of a bell crank such as 81 pivoted at 88 and having a horizontal arm supporting a pin such as 89, guided for vertical movement in the machine frame. The upper end of each pin 89 rests beneath a selector lever 90 extending transversely of and pivoted in the machine frame, there being a separate selector lever for each register. The construction and operation of these automatic selector levers is disclosed in detail in the before-mentioned application Serial No. 581,800. when a magazine 8 in a given columnar position contains a lug such as 9| to select a particular register, its corresponding lever 9D is depressed, rocking its bell crank 81 clockwise and thrusting the corresponding slide 63 to 66 forward the same as when the Register Key for that particular register is depressed, as above described.

5. Engagement of the registers for an adding operation To facilitate an understanding of the selection and subsequent engagement of a register, we

will consider that the D Register Key has beenk depressed, as shown in Figure 5, for the selection of the D register, and proceed to show, step by step, how the selection of this register is completed and how it is engaged for an adding operation.

Referring to Figure 5, the right arm I has pivoted thereto a pawl 92 tensioned clockwise from its position in Figure by a spring 93. A hook 94 is provided on the rear end of the pawl, and embraces a stud 95 when the machine is at rest. The stud 95 is carried by a plate 9S pivoted on a stationary stud 91. Another stud 98 is secured to plate 96 and lies within a notch in the rear edge of a pendant 99 during accumulating operations. Pendant 99 is pivoted at |90 to a lever |9|, pivoted on a stationary rod |82.

Referring to Figure 15, lever IUI is connected by a sleeve |98 to an arm |09, the lever and arm each having a slot Illia and |92a-respectively, in which is slidably mounted a cam selecting key ||8 normally tensioned by a spring toward the left from the position shown in Figure l5, so that a shoulder |20 on the key adjacent arm |09 abuts the arm. In this position, a tongue l2, provided on the opposite end of the key, rests within a slot ||3 in an adding cam lever ||4 pivoted on rod |92 adjacent lever |9l. The rear end of cam ||4 (Fig. 5) is provided with a cam slot ||5 embracing a stud ||6 on member 8|. This member is mounted for horizontal movement forwardly and rearwardly of the machine by being suspended from the machine frame on two links ||1 and ||8 pivoted to the front and rear ends of member 8| and to the machine frame. As heretofore mentioned, studs 11 to 80 are secured in member 8| to move forwardly and rearwardly of the machine with the member.

When the machine begins an operation, counter-clockwise movement of arm I9 causes a shoulder |9 on pawl 92 to push stud 95 a short distance to the rear, as shown in Figure 6. This movement. and the accompanying movement of plate 96 and stud 98, raises pendant 99 and lowers the Cam Selecting Key |10, which, being in engagement with slot 3 of the adding cam H4,

Suflice it, therefore, to say that lowers the rear end of the cam, causing cam slot 5 to shift member 8| to the rear, as shown in Figure 6, so that notch 86 in engaging link 16 (in this instance, engaging link 16 for the D register) may rise under the tension of its spring 82 to engage pin 11, completing the selection of the register. As soon as actuating arm I8 rises to the `point where spring 93 no longer rotates pawl 92 with relation to arm lll, pawl 92 moves away from stud 95, the parts 96, 99, ||4, 8|, etc., remaining in their moved positions during the remainder of the counter-clockwise movement of arm I0.

Just before arm l0 completes its counter-clockwise movement, the forward edge of pawl 92 strikes a stud |23, so that continued movement 'of arm I0 tensions spring 93 and rotates pawl 92 clockwise with respect to arm I8. When arm l0 has reached its extreme counter-clockwise position, a shoulder |24 on pawl 92 lies substantially in front of stud |23.

At the beginning of the return or clockwise oscillation of arm I0, pawl 92 moves stud |23 upwardly and to the rear, causing arm |25, on which stud |23 is mounted, to move counter- 'clockwise about its pivot |26. This moves stud |21, also secured to arm |25, in a corresponding direction, and since stud |21 lies within a slot in an arm on plate 96, moves plate 96 clockwise about its pivot 91. It must be remembered that this movement of plate 96 takes place at the very beginning of the return oscillation of arm lll.

Such movement of plate 96 lowers stud 98 and thereby raises -the rear end of adding cam lever H4, to move member 8| to the left, as shown in Figure 7. Since the selecting link 16 for the D register is now in its upper'position, the forward movement of member 8| pulls this link forward, which in turn rocks arm 83 and shaft 84 counter-clockwise to shift the D register into engagement with the adding side 28 of the racks 2|, as shown in Figure 7.

During the remainder of return movement of arm l0, the parts 96, 99, the engaging links, etc., are not moved, so that at the end of the operation the register selected and engaged for that operation (in this instance, the D register) remains engaged, as shown in Figure 8.

At the beginning of the next operation, the initial counter-clockwise movement of plate 96 vdisengages the D register by movement of its engaging link 16 to the rear, as shown in'Figure 9. If this register is not again selected for this cycle, as soon as the engaging link reaches its neutral position, one of four strong springs |28, attached to the bails 61 to 18 (Figure 16) and to the machine frame, pulls its corresponding bail counterclockwise about its pivot 1|. At this time the bail is free to be rocked in this direction, since its corresponding slide 63 to 66 is not pulled forward during this operation by depression of its corresponding Register Key or pushed forward by its corresponding automatic selector lever.

6. Engagement of the registers for a subtracting operation the adding operation in the D register as above described.

Referring to Figure 8, abail |29 similar to bails 6l, pivoted on a, rod 62liesI directlybeneath the stem of the Subtraction Key. A slide |30, connected to bail |29, carries an upstanding projection |3|, having a beveled edge |33 (see also Figure 15) arranged to engagea beveled surface on key H0. Depression of the Subtraction Key rocks bail |29 clockwise, pulling slide |30 forward and causing beveled edge |33 to cam key ||9 toward the right, to the position shown in Figure 15, shifting tongue ||2 out of engagementwith -slot ||3 of add cam I4 to a position directly above a slot |34 in a subtracting cam lever |35 pivoted on rod |02 adjacentcam ||4. Whenkey ||0 is so moved, a notch |36 therein is brought into alignment with slot ||3 of cam lever ||4.

Now, at the start of the machine cycle, ras pendant 99 is raised, the body portion of key'l l0 behind notch |36 rocks add rcam I |4 downwardly about shaft |02, thrusting 'the Dregister to neutral position, as shown in Figure 9. During this downward movement, tongue 2 rides against the upper edge of cam |35, and cams the right end of key toward shaft |02, against thetension of spring I||, slot |0|a being sufficiently wide to permit of this movement, So that, upon the completion of the up-stroke of the pendant 99, tongue |-|2 engages in slot |34 under tension of spring At this point in the cycle, theD register selecting link, which was left in engagement with stud 11 at the-'end of the preceding adding operation, is disengaged `as above described, and the selecting link of the C register is free to rise so thatits notch 86 engages stud`f18, as shown in Figure 9.

Now, at the beginning yofthe return `or Clockwise oscillation of arm I0, as vpendant-99 is lowered to the position shown in Figure 10, the-rear end of lever |35is raised instead of lever ||4. This causes a cam slot |36a to engage studIIG and thrust member 8| toward the right (Figure 10), and since the C register link 16 is in engagement with stud 18the rearward movement of member 8| thrusts the link rearwardly, which` in turn rocks arm 83 and shaft 84 clockwise to engage the C lregister with the subtraction side 29 of racks 2|, as shown in yFigure 10. At the end of the cycle, the Subtraction Key and slide |30 restore, allowing spring to restorerkey ||0 to the left (Figure 15) If, upon the next operation of the machine,

- the Subtraction Key is not again depressed, key

||0 remains at the left. In this position, tongue ||2 lies above slot ||3 in adding cam ||4, and a projection |31 on the right end of the key lies over a portion of subtract cam |35 immediately behind slot |34, so that during this operation, as lever |0| rocks'clockwise, projection |31 moves cam |35 downwardly about shaft |02, tongue ||2 engaging slot ||3 in cam |I4 as the clockwise movement is completed. When lever |0| moves counterclockwise during the latter half of this cycle, cam ||4 is raised to engage the selected register with the adding side28 of racks 2|.

Subtraction slide |30 may be automatically controlled by magazines 8 on the carriage by the following construction. A bell crank |38 (Figure 3) similar to bell cranksr k81, is pivoted at 88,and has a depending arm resting against the rear end of subtraction slide |30. Apin |39 extends between a selector lever |40,`simi1artto selector levers 90, and a horizontal arm of bell crank |38. It is apparent that when the carriage advances to a columnar position where a magazine 8 contains alug to depress the .selector |40, bell crank |38 rocks clockwise about pivot 88pushing slide |30 forward thev same as thoughthe Subtraction Key were depressed.

7. Actuation of the registers Actuation of the registers occurs during the latter'half of the machine cycle, the engagement of the registers taking place just after racks 2| are lowered.

As before stated, the amount of movement imparted to the racks is 'determined by stops set by indexing an amount in the keyboard. When a register is engaged with the adding side 28 of racks 2|, its wheels26 are rotated clockwise as the racks rise, and conversely when a register is engaged with the subtraction side 29, its wheels 26 are rotated counter-clockwise.

8, -Talcz'ng totals from the registers 'Totals may be taken from the registers manually by the depression of the Register Total Key, or automatically by operationy of a corresponding carriage control.

When it is desiredto take a-total from one of the registers, it is first necessary to operate the machine through a blank cycle to restore any transfer elements that may have been released during the preceding cycle, and to engage the register from which the total is to be taken. To do this it is only necessary to depress theproper Register Selecting Keyl and operate the machine. As yexplained above, this will leave the register engaged at the end of the operation, and orpurposes of illustrationwe will consider that the D register has been so engaged, as shown in Figure 11.

'The Register Total Key stem rests on a bail |4| similar to bail |29. A slide |42 is mounted for forward and rearward movement simil-arly to slide |30, and has an upwardly extending portion |43 `with a rearwardly extending arm |44. A springi|`45 is secured to a stud |46 on the portion |43 and to a'stud |41 on a bail |48 pivoted on a rod |49.

A link |50, pivoted atV one end to an arm of bail |48 rand at its opposite end to pendant 99, connects the bail and pendant for uniform movement. AWhen the Register Total Key is not depressed, as shown in Figure 3, slide |42, bail |40 and link |50 lie in their rear positions, holding pendant 99 in engagement with stud 98.

Depression of the Register Total Key movesv slide |`42-forward, stretching spring |45, asshown in Figure l1. This movementv of slide |42, through spring |45, pullsbail |48, link |50, and pendant 99 forward, until the forward edgefof the pendant rests against a stud |5| on plate'BS. This movement is vsufficient to disengage the notch in the rear edge of the pendant from stud 98. Slide |42, however, is moved `forward an additional distance'suicient to allow pendant `99 to 'move still farther forward as soon yas `stud |5| is lowered to a position opposite anotch inthe forward edge ofipendant'99. f

` Now, upon operation of the'machine, counterclockwise movement' of plate 96' at the very'beginning of the operatiom lowers stud |5|, as just mentioned, to a position opposite the notchv in the forward edge of the pendant, atwhich time spring |45 moves pendant 99 'forward,engaging the notch on the. stud. It will ybe noted that this counter-clockwise movement of' `plate 9|-didV not raise pendant I99'since -studl98 was disengaged from its notch by the initial forward movement of the pendant. Actuating arms 10 then complete their counter-clockwise movement, with the D register remaining in its engaged position, as shown in Figure 12.

As explained in the previously mentioned application Serial No. 581,800, when a register is in engagement with the actuating racks, during the initial stroke of arms 19, the total is taken from the register wheels and printed, the transfer lugs on the register wheels arresting movement of the actuating racks 21 as soon as the respective register wheels reach zero. At the beginnmg of the return stroke of arms 10, shoulder i on pawl 92 raises stud 12S, as in accumulating operations, rotating arm 125 clockwise and raising pendant S5, as shown in Figure 13. This lowers cam slot H and moves member 81 to the rear, disengaging the selected (D) register. This takes place after the total is printed and before actuating racks El start their return movement. During the remainder of the return stroke of arms 153, racks 2l return to their normal positions,

At the very end of the operation when the Total Key is released, in the manner explained in application Serial No. 581,800, a spring |52 pulls pendant SE1 to the rear, disengaging it from stud 151, bringing the rear edge of the pendant against stud 93.

It will be noted that this is not the normal position of pendant SS shown in Figure 5. The pendant, however, returns to its normal position during the next cycle. In this next cycle, the initial counter-clockwise movement of plate 9G raises stud S6 until it is opposite its notch, at which time spring 152 engages it therewith. The pendant is then in position to be returned to its normal position when shoulder 124 raises stud |23 at the beginning of the return movement of arms lil.

Totals may be takenl automatically under the control of magazines 8 on control plate l by a suitable train of connections similar to those described in connection with the register subtracting mechanism, and operable oy an automatic selector lever 153 (Figure 3).

.9. Taking sub-totals from the registers Sub-totals may be taken from the registers manually by the depression of the Register Subtotal Key, or automatically by operation of a corresponding carriage control.

After a blank cycle has been taken to engage the register from which the sub-total is to be taken, the Sub-total Key is depressed. The Subtotal Key stem rests on a bail 154 similar to bail 141. A slide 155 is mounted for forward and rearward movement similarly to slide |42, and has anA upstanding arm 156 (Figure ll) having a cam surface i5? contacting a stud 158 on the rear arm of a bail lever 159 pivoted on a rod |60. A stud 151 is secured to the forward end of lever 159 and lies in the vertical plane of stud |23. A stud 162, fixed on portion |43 of slide 142, lies in front of arm 156, so that when the Register Sub-total Key is depressed to pull slide 155 forward, arm 156 engages stud 1&2 and pulls also slide 142 forward to shift pendant 90. This forward movement also causes cam surface 15'! to lift stud 158 and lower stud 161.

Now, upon operation of the machine, when shoulder |24 of pawl 92 would normally engage stud |23, at the beginning of the second half of the cycle, the presence of stud 161 prevents shoulder 124 from so engaging the stud, as shown in Figure le. Therefore, instead of pawl 92-swinging stud |23 upwardly to disengage the selected (D) register before the actuating racks return, it rides idly under the stud, leaving the selected register engaged until after the actuating racks have returned. Hence, the amount that was in the register is returned thereto.

Mechanism similar to that described in application Serial No. 581,800 is provided to effect automatic operation of sub-total slide under control of the paper carriage.

Although reference to application Serial No. 581,800 is given a number of times in the preceding description, it is not given in every instance Where a more complete reference to many of the parts may be found. It is, therefore, to be understood that wherever the disclosure is inadequate for a complete understanding of the invention, such reference should be resorted to.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of embodiment herein disclosed, for it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow.

What is claimed is:

l. In an accounting machine, the combination of a totalizer shiftable from a neutral position to an add position or to a subtract position, two oscillatable cams, means operatively connecting said totalizer to said cams so that oscillation of one cam shifts the totalizer between neutral and add positions and oscillation of the other cam shifts the totalizer between neutral and subtract positions, an oscillatable cam operator, a member between said operator and cams shiftable to enable the movement of said operator in one direction of oscillation to move one or the other cam in one of its directions and capable, irrespective of the shift, of engaging both cams to enable the movement of the operator in the opposite direction of oscillation to move either cam in the other one of its directions.

2. In a machine of the class described having a totalizer movable into adding or into subtracting positions; means to shift the totalizer for addition or subtraction, said means including a pair of cams each being movable from an ineffective position to an effective position, one of said cams being operable to shift the totalizer from a neutral to an adding position, and the other of said cams being operable to shift the totalizer from a neutral to a subtracting position, actuating means for said cams including a member shiftable to select one cam or the other for actuation, said member being operatively connectable to the selected cam for moving the cam between its ineffective and effective positions and portions on the member acting during the movement of the member into operative connection between the selected cam and the member, for restoring the non-selected cam to ineffective position.

3. In an accounting machine operable in cycles, the combination of a totalizer shiftable from a neutral position to an add or to a. subtract position in one cycle, and back to neutral position and thence to a subtract or add position in a f next cycle, two cams each oscillatable once to an operated position and a restored position in two cycles of the machiney means operatively connecting said totalizer to said cams so that oscillation of one cam shifts the totalizer between neutral and add positions and oscillation of the other cam shifts the totalizer between neutral and subtract positions, a cam operator oscillatable once in each cycle, portions on said operator operable during the movement of said operator in its movement in one direction to restore either cam from operated position and an operative connection between said operator and cams shiftable to enable the operator in its opposite movement to move one or the other cam to such operated position.

4. In an accounting machine operable in cycles, an addition-setting device, a subtraction-setting device, one of said devices normally being in operated position and the other being in a restored position, an operator for said devices reciprocable once in a cycle, and connecting means, between said operator and devices, including a shiftable part having a pawl and ratchet-like operative connection with one or the other of said devices depending on the shift of said part, said connecting means being constructed so that movement of the operator in one direction may move either device, irrespective of said shift, to restored position and so that movement of the operator in the other direction may move the; other device to operated position.

5. In a machine of the class describedl a traveling carriage, a plurality of totalizers, means to shift the totalizers for addition and subtraction, said means including a pair of cams, each being movable from an ineffective position to an eiective position, one of said cams being operable to shift any totalizer to adding position, and the other of said cams being operable to shift any totalizer to subtracting position, means for actuating said cams including a shiftable member selectively and operatively connectable with either cam to move the selected cam from its ineffective to its eiective position, portions on the member for restoring the unselected cam to ineffective position during the movement of the member toward operative connection with the selected cam, and means under the control of the carriage for controlling the shifting of the member to select one cam or the other for operation.

6. In a machine of the class described, a traveling carriage, a plurality of totalizers, means to shift the totalizers for addition and subtraction, said means including a member reciprocable in one direction from normal for addition, and reciprocable in another direction from normal for subtraction, a pair of cams, each being movable from an ineffective to an effective position and operatively connectable to said member for imparting such reciprocable movement to the member, an arm for imparting movement to said cams, a slide on said arm for normally connecting said arm with one of said cams, means under the control of the traveling carriage for shifting the slide from connection with one of the cams into position for connection with the other cam, and portions on the slide for restoring said one cam to ineiective position during movement of the slide in a direction to effect a connection between the slide and said other cam.

OSCAR J. SUNDSTRAND. 

